A pressure sensor mounting fixture with a semi-circular sealing method

Abstract

This application provides a pressure sensor mounting fixture with a semi-circular sealing method, relating to the field of engine technology. It includes a hose and a through-tube, with a pressure tube connected to the through-tube. The through-tube passes through the hose, and a lower pressure plate is fixedly connected to the inner end of the through-tube. An upper pressure plate is fitted onto the outer end of the through-tube. A nut is screwed to the upper end of the hose and tightened onto the upper pressure plate. A bracket is fixedly connected to the upper pressure plate, and a protective ring is detachably connected to the bracket, enclosing the hose. In this application, the arc-shaped upper and lower pressure plates fit against the sidewall of the hose, reducing hose deformation and ensuring fluid delivery. Rotating the nut presses the upper pressure plate tightly, and since the upper and lower pressure plates do not rotate relative to the hose, frictional damage to the hose is reduced. The protective ring and bracket enclose the hose, allowing it to be fixed to other structures, facilitating support at the connection point and reducing hose deformation.

Description

Technical Field

[0001] This application relates to the field of engine technology, and more specifically, to a pressure sensor mounting fixture with a semi-circular sealing method. Background Technology

[0002] Pressure measurement within a pipeline requires the installation of a pressure sensor, typically connected using a pressure tube. Specific tooling is used to connect the pressure tube to the pipeline being measured.

[0003] Existing sensor installation methods require drilling holes in the pipeline and then welding test pressure tube connectors. If the pipeline being tested is a rubber tube, a section of iron pipe needs to be connected in the middle of the rubber tube for transition, which is cumbersome and costly.

[0004] In response, Chinese patent application number CN201920658386.3 discloses a quick installation fixture for a hose temperature and pressure sensor. The solution mainly involves making a hole in the hose, inserting the lower pressure plate and connector of the fixture, then inserting the upper pressure plate and tightening the clamping nut. The upper and lower pressure plates use their semi-circular protruding sealing rings to press the hose in the middle.

[0005] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems:

[0006] 1. The sensor is connected to the hose via a pressure tube. Due to the lack of support, the hose twists because of the added weight on the sides, affecting the internal liquid transmission.

[0007] 2. The end faces of the upper and lower pressure plates are flat, which will flatten the side wall of the hose, thereby reducing the cross-section of the hose and further affecting the internal liquid transmission. Summary of the Invention

[0008] To overcome the shortcomings of existing technologies, this application provides a pressure sensor mounting fixture with a semi-circular sealing method, which can solve the problems mentioned in the background art.

[0009] The technical solution adopted by this application embodiment to solve its technical problem is: a pressure sensor installation fixture with a semi-circular sealing method, including a rubber tube and a through tube. A pressure tube is connected to the through tube, and the through tube passes through the rubber tube. A lower pressure plate is fixedly connected to the inner end of the through tube, and an upper pressure plate is sleeved on the outer end of the through tube. A nut is screwed to the upper end of the rubber tube and tightened on the upper pressure plate. A bracket is fixedly connected to the upper pressure plate, and a protective ring is detachably connected to the bracket. The protective ring wraps around the rubber tube. The end faces of the upper pressure plate and the lower pressure plate are both arc-shaped and adapted to the rubber tube.

[0010] In one specific implementation, both the upper pressure plate and the lower pressure plate are provided with a convex ring on their end faces, and the cross-section of the convex ring is semi-circular.

[0011] In one specific implementation, a quick connector is provided at the upper end of the tube, and the pressure tube is inserted into the quick connector.

[0012] In one specific implementation, the bottom surface of the lower pressure plate is conical.

[0013] In one specific implementation, mounting holes are provided at both ends of the bracket.

[0014] In one specific implementation, the retaining ring is Ω-shaped, and the bracket has a slot adapted to the retaining ring.

[0015] In one specific implementation, the protective ring is provided with elastic protrusions, and the bracket is provided with recesses that match the protrusions.

[0016] In one specific implementation, the inner wall of the upper pressure plate is provided with a positioning block, and the outer circle of the through tube is provided with a positioning groove that matches the positioning block.

[0017] The advantages of the embodiments of this application are:

[0018] The use of curved upper and lower pressure plates to fit against the side wall of the hose reduces hose deformation and ensures liquid delivery. Rotating the nut tightens the upper pressure plate, which does not rotate relative to the hose, reducing frictional damage. The protective ring and bracket enclose the hose and can be fixed to other structures, facilitating support at the connection point and reducing hose deformation. Attached Figure Description

[0019] Figure 1 A schematic diagram of the pressure sensor mounting fixture with a semi-circular sealing method provided in the embodiments of this application;

[0020] Figure 2 Exploded view of the pressure sensor mounting fixture with a semi-circular sealing method provided in the embodiments of this application;

[0021] Figure 3 A schematic diagram illustrating the connection relationship between the upper pressure plate and the lower pressure plate and the hose provided in the embodiments of this application.

[0022] In the diagram: 10-Hose; 20-Hose insertion; 21-Quick connector; 22-Positioning groove; 30-Pressure tube; 40-Lower pressure plate; 50-Upper pressure plate; 51-Positioning block; 60-Nut; 70-Bracket; 71-Mounting hole; 72-Dent; 80-Guard ring; 81-Protrusion; 90-Ring. Detailed Implementation

[0023] The technical solution in this application embodiment is to solve the problems mentioned in the background art above, and the overall idea is as follows:

[0024] Please see Figures 1-3 A pressure sensor mounting fixture with a semi-circular sealing method includes a rubber tube 10 and a through tube 20. A pressure tube 30 is connected to the through tube 20, which passes through the rubber tube 10. A lower pressure plate 40 is fixedly connected to the inner end of the through tube 20, and an upper pressure plate 50 is sleeved on the outer end of the through tube 20. A nut 60 is screwed to the upper end of the rubber tube 10 and is tightened on the upper pressure plate 50. A bracket 70 is fixedly connected to the upper pressure plate 50, and a protective ring 80 is detachably connected to the bracket 70. The protective ring 80 wraps around the rubber tube 10. The end faces of the upper pressure plate 50 and the lower pressure plate 40 are both arc-shaped and adapted to the rubber tube 10. The use of the arc-shaped upper pressure plate 50 and lower pressure plate 40 to fit against the side wall of the hose 10 can reduce the deformation of the hose 10 and ensure liquid delivery. The rotation of the nut 60 tightens the upper pressure plate 50, and the upper pressure plate 50 and lower pressure plate 40 do not rotate relative to the hose 10, which can reduce frictional damage to the hose 10. The protective ring 80 and the bracket 70 wrap around the hose 10 and can be fixed to other structures to facilitate support at the connection point and reduce the deformation of the hose 10.

[0025] Please see Figures 1-3 Both the upper pressure plate 50 and the lower pressure plate 40 have raised rings 90 on their end faces, and the cross-section of the raised rings 90 is semi-circular. Here, the semi-circular raised rings 90 serve a sealing function and can also reduce damage to the hose 10.

[0026] Please see Figures 1-3 A quick connector 21 is provided at the upper end of the conduit 20, and the pressure tube 30 is inserted into the quick connector 21. Here, the quick connector 21 is provided to facilitate the quick connection of the pressure tube 30.

[0027] Please see Figures 1-3 The bottom surface of the lower pressure plate 40 is conical. Here, the conical shape at the lower end of the lower pressure plate 40 facilitates insertion into the side wall of the hose 10.

[0028] Please see Figures 1-3 The bracket 70 has mounting holes 71 at both ends. These mounting holes 71 facilitate the mounting of the bracket 70 onto other structures.

[0029] Please see Figures 1-3 The protective ring 80 is Ω-shaped, and the bracket 70 has a slot that fits the protective ring 80. Here, the protective ring 80 is sheet metal in the shape of Ω and is inserted into the bracket 70 to protect the tubing 10, providing additional support and preventing excessive stress on the perforated area of ​​the tubing 10.

[0030] Please see Figures 1-3The retaining ring 80 is provided with elastic protrusions 81, and the bracket 70 is provided with recesses 72 that are adapted to the protrusions 81. Here, a spring is cut out on the retaining ring 80, and a protrusion 81 is sheet metal formed at the front end of the spring. When the retaining ring 80 is inserted into the bracket 70, the protrusion 81 is embedded in the recess 72, forming a quick positioning.

[0031] Please see Figures 1-3 The upper pressure plate 50 has a positioning block 51 on its inner wall, and the outer circle of the tube 20 has a positioning groove 22 that matches the positioning block 51. Here, when the upper pressure plate 50 is inserted into the tube 20, the positioning block 51 is inserted into the positioning groove 22 to achieve the positioning of the upper pressure plate 50 and the lower pressure plate 40, ensuring that the arc surface fits against the inner and outer walls of the tube 10.

[0032] When using this application: Drill a hole in the side wall of the hose 10, insert the through tube 20 and its lower pressure plate 40 into the hose 10, then put the bracket 70 and its upper pressure plate 50 on the through tube 20, using the positioning block 51 and the positioning groove 22 for positioning, while ensuring that the bracket 70 is perpendicular to the hose 10, then put the protective ring 80 on the hose 10, and then insert it axially into the slot on the bracket 70, using the protrusion 81 to embed into the recess 72 to achieve locking, ensuring that the end faces of the upper pressure plate 50 and the lower pressure plate 40 are in contact with the arc surface of the hose 10, then screw the nut 60 onto the through tube 20 and tighten it, then insert the pressure tube 30 on the sensor into the quick head to complete the installation.

[0033] In summary, by using the arc-shaped upper pressure plate 50 and lower pressure plate 40 to fit against the side wall of the hose 10, the deformation of the hose 10 can be reduced, ensuring liquid delivery; the nut 60 rotates to tighten the upper pressure plate 50, and the upper pressure plate 50 and lower pressure plate 40 do not rotate relative to the hose 10, which can reduce frictional damage to the hose 10; the protective ring 80 and the bracket 70 wrap around the hose 10, which can be fixed to other structures, facilitating support at the connection point and reducing deformation of the hose 10.

[0034] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pressure sensor mounting tool of a semi-circular sealing method, characterized by, The device includes a hose and a through tube. A pressure tube is connected to the through tube, which passes through the hose. A lower pressure plate is fixedly connected to the inner end of the through tube, and an upper pressure plate is fitted onto the outer end of the through tube. A nut is screwed to the upper end of the hose and tightened onto the upper pressure plate. A bracket is fixedly connected to the upper pressure plate, and a protective ring is detachably connected to the bracket. The protective ring wraps around the hose. The end faces of both the upper and lower pressure plates are arc-shaped to fit the hose.

2. The semi-circular seal method pressure sensor mounting tool of claim 1, wherein, Both the upper pressure plate and the lower pressure plate have raised rings on their end faces, and the cross-section of the raised rings is semi-circular.

3. The semi-circular seal method pressure sensor mounting tool of claim 2, wherein, The upper end of the tube is provided with a quick connector, and the pressure tube is inserted into the quick connector.

4. The semi-circular seal method pressure sensor mounting tool of claim 3, wherein, The bottom surface of the lower pressure plate is conical.

5. The semi-circular seal method pressure sensor mounting tool of claim 4, wherein, Mounting holes are provided at both ends of the bracket.

6. The semi-circular seal method pressure sensor mounting tool of claim 5, wherein, The protective ring is Ω-shaped, and the bracket has a slot that fits the protective ring.

7. The semi-circular seal method pressure sensor mounting tool of claim 6, wherein, The protective ring is provided with elastic protrusions, and the bracket is provided with recesses that match the protrusions.

8. The semi-circular seal method pressure sensor mounting tool of claim 7, wherein, The inner wall of the upper pressure plate is provided with a positioning block, and the outer circle of the through tube is provided with a positioning groove that matches the positioning block.

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